John powers



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UNITED STATES PATENT OFFICE.

JOHN POVERS, OF NEV YORK, N. Y.

Specification of Letters Patent No. 23,489, dated April 5, 1859'.

To all whom it may concern:

Be it known that l', JOHN Pownns, of the city, county, and State of New York, have invented a new and useful Improvement in Pumps, of which the following is a full, clear, and exact description, reference being had to the accompanying drawing, in which Figure l represents a side elevation of a pump constructed according to the principles of my invention, Fig. 2 is a vertical longitudinal section of the same through the axes of the pump barrel, and Fig. 3 is a transverse section of the same at the line :e a of F 2.

The object of my invention is to produce an eflicient pump for forcing water from wells or other sources lower than the place where the motive power can be conveniently applied, and to enable such a pump to be constructed at a low cost.

My invention is divided into several parts, all of which may be embodied in one pump, or which may be used separately in connection with pumps of different construction in other respects as circumstances may render such use expedient.

rlhe first part of my invention has reference to that class of forcing pumps in which the piston rod is on the suction side of the bucket or valvular piston, and consists in combining two such pump buckets together back to back by means of a piston rod common to both, in such manner that the power to work the pumps may be applied at a point in the piston rod between the two buckets so as to produce a double acting forcing pump of this variety receiving water at its middle and discharging it at its eX- tremities.

The second part of my invention relates to the construction of the air vessel and to the means of applying power to the pistons of pumps; and it consists in combining the lever or pump brake, by which the pistons of two pump barrels arranged in line with each other are moved, with an air vessel to which the pump brake is pivoted, and which is constructed with a passage to permit the brake to pass through it and act upon the pump piston beneath.

The pump represented in the annexed drawing embodies my whole improvement; it is designed particularly for operation in the bottoms of wells, where there is a narrow space for mechanism .of any kind, and

in which from the difficulty of getting at the working parts all the parts must of necessity be constructed in the most simple manner. In this pump there are two piston cylinders A, A, which are located in line with each other, and are cast in one piecethe central portion B between the cylinders, which has openings c, (Z, above and below, for the entrance of water and to permit the application of the pump brake E to the pistons. Each cylinder is closed at its outer end by a head f, and each is fitted near this head with a delivering part e to which a suitable exit valve z' is applied.

The pistons, G G, of the pump have each a valve m in them, opening toward the outer end of the` cylinder in which the piston moves, and the two pistons are connected by a piston rod H which is common to both, and in the present instance is cast in one piece with the pistons. This piston rod, or more properly piston block, has a socket at its center to which the end of the lower arm g, of the pump brake E is applied, and this end of the pump brake arm is rounded and in its vibration bears alternately against the opposite ends of the socket in which it is received.

The compound pump barrel thus described is surmounted by an air vessel K, which has ports at its opposite extremities that are fitted to the nozzles of the delivery parts of the pump barrel beneath, so as to receive the water forced out by each piston. This air vessel forms the fulcrum of the pump brake E, which has a T form, its lower arms (g) passing downward through a passage it, in the air vessel, and through the opening in the upper side of the compound pump barrel into the socket in the piston block H. The horizontal arms n, n, of the pump brake are connected by rods j, j, with the opposite arms of a pump brake P situated at the top of the well to which the pump is applied, and the delivery pipe R of the pump is conducted from the air vessel K upward, and may be made fast to the same standard, S, which sustains the upper pump brake.

In applying this pump to a well, the compound pump barrel, with the air vessel car rying the pump brake, are made fast to an upright timber N, which is fixed securely in the well; the standard of the upper brake P is secured to a timber U crossing the top of the well, and the corresponding arms of the upper and lower pump brakes are connected by rods y' j, so that the movement of the upper brake by an operator causes a corresponding movement in the lower pump brake, and in the pistons of the pump. When the pump is operated, the water is drawn in at the central opening in the pump barrel, and passing alternately through the valve of each pump bucket is forced into the air vessel, whence it issues through the discharge pipe It. The pump barrel is situated beneath the surface of the water, so that in case of any leakage in the piston or valves no air is drawn in, hence the pump always discharges water unmixed with air.

The construction of this pump is such that it can be produced at a low cost the pump cylinder of the two pistons being in one piece and extending in line with each other without any diaphragm or other obstruction between them can be bored out at one operation without shifting the boring head and an examination of the other parts shows that but little other fitting up is required to complete the pump. Moreover the construction of the air vessel is such that it affords a firm fulcrum for the pump brake, sustains it on both sides, guides it in mov- Y ing, and connects it securely with both pump cylinders. The construction and arrangement of the parts of the pump is also such that the pump can be made fast securely to the upright timber by bolting the air vessel thereto, so that the pump may be inserted into the water and made fast in the well by introducing the timber with the pump endwise into the water, resting the timber upon the bottom, and staying its top, and the pump may be readily removed from the well by raising the timber, without the necessity in either case of entering the water for the purpose. When the well is not too deep, the saine timber that sustains the pump may extend out of the top of the well and form the standard for the upper pump brake; but when the well is deep it is better to employ a separate standard for the upperlpump brake secured to the curb of the wel Having thus described Vmy improved pump, what I claim as my invention and desire to secure by Letters Patent is l. Arranging two forcing Avalvular pistons back to back in line with each other and combining them by means of a piston rod or other connection common to both with the arm of the pump brake at a point between thev Vtwo pistons, substantially as herein set forth, so that both may be operated by the same arm of the pump brake.

2. I also claim combining the pump brake with the duplex pump barrel by means of an air vessel constructed and located substantially as herein set forth, so that it forms a secure fulcrum for the brake and affords a passage through it for the arm of the brake to the piston rod upon which it acts.

In testimony whereof I have hereunto subscribed my name.

' JOHN POWERS. lvvitnesses:

JAMES M. EDNEY, W. L. BENNEM. 

